Manufacture of artificial cloth



Patented June 15, 1926.

PATENT O FFICE.

KURT RoMMLER, or SPREMBERG, GERMANY.

MANUFACTURE OF ARTIFICIAL CLOTH.

No Drawing. Application filed November 13, 1924, Serial No. 749,645, and in Germany November 19, 1923.

immediately upon the cloth prepared this way and after a second drying the process is finished. F or the double coating and drying as well as for the necessary polishing andglazing after the first impregnation, which has to be done for the purpose of preventing the adhering oilfilm from blotting, this process' is comparatively expensive, requires a long time and the resulting product is comparatively brittle and hard. These-disadyantlages prevent this kind of cloth from "being used for many cases f. ex. for the manufacture and adornment of clothes and hats.

According to this invention the fabric is provided with a thin and equal layer of partly saponified linseed-oil'varnish. or its substitutes, as f. ex. saponifiable natural or synthetic resins or resin oils, andupon this layer the dustof textile fibres is immediately Scattered. -.This partial saponification specially saponifies the lighter parts of the material and prevents without a preceding impregnation t he blotting of the fabric, This composition obtained" by partial saponifica- "tion can be spread in a very thin layer upon the fabric Without losing its capacity of 40 sticking and by this far cheaper and simpler process a very compact, soft and durable text.le, fibre cloth is obtained. The duration of the manufacturing process is shorter and the obtained product can replace velvet with 4 out any trouble. i 1

The amount of alcali or caustic alcali, necessary for the partial saponification of the oils or varnishes, depends upon their content of three acids. As a rule the saponification is carried so far, that an emulsion results. which is readily spreadable and does not stick any more, when the process is ]CwampZe.-99 lbs. of linseed-oil, thickened by cooking, as it is commercially sold as technical merchandise, is mixed at about 68 F. with a solutionof 0,441 lb. of crystal soda in 1,65 lbs. of water, until a uniform emul; sion is obtained. i

l claim:

1'. A method of manufacturing artificial cloth consisting in coating a fabric with a composition of a partly saponified oil varni'sh thickened by cooking, and subsequently upon. this a coating dust of tex- 

